1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lapo4ka [179]
2 years ago
8

Please help with math (30 points)

Mathematics
1 answer:
ikadub [295]2 years ago
8 0

Here we have some problems about circles, the solutions are:

  • a) 490.6 yd^2
  • b) x = 15
  • c) x = 27

<h3>How to find the area of a circle?</h3>

We know that for a circle of diameter D, the area is given by:

A = pi*(D/2)^2

where pi = 3.14

In the image we can see that the diameter of the circle is 25 yd, replacing that in the area equation we get:

A = 3.14*(25yd/2)^2 = 490.6 yd^2

<h3>How to find the value of x?</h3>

<u>For the second image</u>, each line creates two 180° angles. So, if we look at the tilted line, we can see that it is divided in two angles, one of 37° and the other that depends of x, so we can write:

180° = 37° + (9x + 8)°

180° - 37° - 8°  = (9x)°

135°/9° = x = 15

So the value of x is 15.

For the last image:

Notice that we have a 90° angle denoted, then <u>the other 3 sections must add up to 270°.</u>

270° = 54° + (2x + 21)° + (5x + 6)°

Now we solve this for x:

270 - 54 - 21 - 6 = 2x + 5x

189 = 7x

189/7 = x = 27

x is equal to 27

If you want to learn more about circles, you can read:

brainly.com/question/25306774

You might be interested in
Find the value of in the triangle shown below.
Vesnalui [34]

Step-by-step explanation:

in isoscles triangles two angles and lengths are equal .

two sides equal 3.5

so both of the angles are 55°

the sum of the angles in a triangle is 180°, so

x = 180° - 55° - 55°

x = 70° (Ans)

6 0
2 years ago
What the answer for tje pythagorean
Aleks04 [339]
X^2 = 8^2 + 5^2
x^2 = 64 + 25
x^2 = 89
x = <span> <span> <span> 9.4339811321 </span> </span> </span>


7 0
3 years ago
Hi! Can someone please help me with this math problem? Please show your work on how you got your answer. Thank you!
SVEN [57.7K]

Answer:

5=p

Step-by-step explanation:

18=3.50+2.75P

18-3.50=2.75p

14.5/2.75=2.75p/2.75


5=p

she can buy 5 popcorn

5 0
3 years ago
The measure of an angle is five times the measure of its complementary angle. What is the measure of each angle?
GalinKa [24]

Answer:

150 degrees

Step-by-step explanation:

  1. Let the supplement = x  
  2. So the angle you want is 5x  
  3. Then [x + 5x] = 180 because they are supplementary.  
  4. Solving. 6x = 180. Then x = 30.  
  5. So the angle is 5x = 5×30 = 150 degrees
3 0
2 years ago
Factor as the product of two binomials x^2-2x+1
Ket [755]

Answer:(x + 1)^2

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • How is shading a grid to show 1/10 different than 1/100
    15·1 answer
  • Can somebody please help me with these? You don’t have to explain it I just need answers. Thank you so much :)
    11·1 answer
  • Pls help me find f(0)
    12·1 answer
  • × + 20 + 2× = 10 - 2× - 15
    7·1 answer
  • Mr. Mitchell needs to order new balls for the Lincoln School students to use at recess. Mr. Mitchell asks many students what typ
    11·1 answer
  • Mrs. Royal has 99 Royal Recognition awards to give out. Each class received 9 awards. How many classes received awards
    12·2 answers
  • A rectangle measures 3cm by 4cm.What is the length of its diagonal ?
    11·1 answer
  • . Write the missing base. 9 16​
    5·1 answer
  • Help! i will give brainliest!!!
    9·1 answer
  • Calculate the percent change in net sales from
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!